what is the biggest that you should drill them out too???? i" drilled mine out to 3/32 or about 94 th of a inch.. it seams like its a fuse ... the one that came with the gun was to small. i" got one from r.m.c it was a little small than a 5/64 drill it went off good with it . and i" kick my own ???? the gun is a lyman g.p.r[:' (]

thanks fore the help gate